19530511

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 7080689

約数列:

[1, 7, 11, 13, 77, 91, 109, 143, 179, 763, 1001, 1199, 1253, 1417, 1969, 2327, 8393, 9919, 13783, 15587, 16289, 19511, 25597, 109109, 136577, 179179, 214621, 253643, 1502347, 1775501, 2790073, 19530511]

約数ペア:

[(1, 19530511), (7, 2790073), (11, 1775501), (13, 1502347), (77, 253643), (91, 214621), (109, 179179), (143, 136577), (179, 109109), (763, 25597), (1001, 19511), (1199, 16289), (1253, 15587), (1417, 13783), (1969, 9919), (2327, 8393)]